Mersen ATDR2-1/4 600V Cc Time-delay Fuse 2-1/4A

Product Description

The MERSEN ATDR2-1/4 is a Class CC time-delay fuse rated for 600 volts and 2-1/4 amps. Class CC fuses are a compact, high-interrupting-capacity format widely used in control circuits, motor branch circuits, and industrial power distribution panels. The time-delay characteristic allows the fuse to ride through brief inrush currents during motor startup while still providing fast response to sustained overloads and short-circuit faults. Licensed electricians and industrial maintenance technicians install this type of fuse as part of branch-circuit and control-circuit protection in compliance with NEC requirements.

The ATDR2-1/4 is suited for use in residential, commercial, and light industrial electrical systems where Class CC fuse holders or fusible disconnect blocks are installed. Typical applications include motor control panels, HVAC unit controllers, transformer primary protection, and other low-amperage branch circuits requiring both overload and short-circuit protection. Its 600-volt rating makes it appropriate for single-phase and three-phase distribution systems up to that voltage level.

Key Features

• 600-volt rated for use in single-phase and three-phase circuits
• 2-1/4 amp rating for low-current branch and control circuit protection
• Class CC form factor with high interrupting capacity
• Time-delay design tolerates motor inrush and transformer magnetizing currents
• Compact Class CC dimensions fit standard CC fuse holders and fusible disconnects

Compatibility

Designed as an OEM-style replacement for Class CC time-delay fuses in standard CC-rated fuse holders and fusible disconnect blocks rated at 600 volts or below.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC Article 240 and applicable local codes. Always de-energize and lock out the circuit before removing or installing fuses. Verify that the replacement fuse amp rating and voltage rating match the circuit requirements and the fuse holder specifications. Do not substitute a fuse of a higher amp rating without engineering review of the circuit.

Technical Specifications

• Voltage Rating: 600 volts
• Ampere Rating: 2-1/4 amps
• Fuse Class: CC
• Response Type: Time-Delay
• UPC: 78200190852

Standard Information

• Brand: MERSEN
• Manufacturer Part Number: ATDR2-1/4